Apparatus for constructing concrete pipes.



F. TEICHMANw APPARATUS FOR GONSTRUGTING GGNGEETE PIPES.

APPLIoATloN FILED JULY a, 1907.

Patented Aug. l0, w09.

3 SHEETS-SHEET 1.

A TTOHNE YS F. TEICHMAN.

APPARATUS FOR OONSTRUGTING GONGRBTB PIPBs.

APPLICATION FILED JULY 8, 1907.

Patented Aug. 10, i909.

3 SHEETS-BHBBT 2.

W/TNESSES A TTOHNE YS P. TBIGHMAN.

APPARATUS FOR GONSTRUGTING CONCRETE PIPES.

APPLICATION FILED JULY 8, 1907.

Patented Aug. 10, 1909.

3 SHEETS-SHEET 3.

A TTOH/VE YS UNITED rarns'r onine To all 'whoml 'it may concern.:

Be it known that 1, FRANK-."Inrorrrmma l citizen of the UnitedStates, and a resident of lSan Francisco; in the county `of San Fr ncisco vand State of California, have inven ed Ya new and Improved Apparatus for Constructing Concrete Pipes, of which the following is a'full, clear, and exactpde'scription. 4 My invention relates toconcrete pipe constructions, my more particular purpose being to provide certain general improvements 1n the molds for cheapening the l building of.

concrete pipes. v v l R v ference is to be had to the accompanying drawings ormin a part of this specification, inwhichsjiml ar. characters of reference indicate corresponding parts in all .the

figures -1 Y Figure 1 is a view partly in side elevation and partly in vertical longitudinalv` section, on the line 1-1 of Fig. 2, showing the inner m`old, the outer mold and the .concrete pipe between the molds, this view further show# ing a car and movable track which may be conveniently used in theprocess of construction; this view showing also how the plates of the inner mold build up in spiral lines and howthe vlongitudinal liolnts are staggered;

Fig. 2 is a vertical section'sho'wing. the same parts; Fig. 3 is a reduced plan o ikone ofthe plates used in the construction ofthe inner mold. IFig. 4V is a reduced plan'viewof one of the sills which are disposed upon opposite.

sides of the concrete pipe to support certain parts; Fig. 5 is a plan view of one of the parts used in pairs :for formlng inverted arches to temporarily su pJort the linner mold',1before it 1s supported) y the concrete placed under and around this mold; Fig. 6 1s a section throu h one of the arcuate ribs em loyed to hol the lagging of the outer mo d; Fi 7 is a fra mentary plan of the upper en of one of t ese arcuate ribs and means for attaching it to the opposite rib so as to forma pair of ribs for the support of the lagging of the outer mold;- F' ..8 1s. a central section upon the line 8'-8 of ig. showing how the arcuate ribs of each pair are con# nected by means of a bolt; Fig. 9 is a sectionI upon .the line 9-9 of Fig. 10, looking in the direction of the arrow and. showing the lower end of one of the arcuate ribs and the `manner of its support relatively to the sillv and other parts; and Fig. 10 is a central section upon the line 10-10 of'Fig. 9. i

Specicationof 'Letters Patent. Appncauonlmea rune, ist?. semina. 382,593.

Patented Aug. 1o, isos.,

The

sills 13,'the latter being larranged parallel with each other and spaced apart according to the Width desiredior the concrete pipe to be formed.. Pins 14, which `form part of the sill-blocks, t into holes 15 of the sills and thereby locate and connect the latter.

Supportsv for the inner mold'l are each forme of two members .16, each'm'emher being provided with ya pin 1,7 and` slot 18. `These members are so arranged that the in 17of onepasses intothe yslot of the ot er.

-support having the shape of an inverted arch. Angle-plates l19 are riveted to the supports. The supports `rest vwith these angle-plates upon the sills 13 and the angle-plates are secured to the sills byA pins 20, which fit into the holes 27 of `the sills." AThe ends 21 beyond the angle-plates. serve as handles.

The inner mold is .made up of metallic p1ates23 having anglelbrackets l24:.' These plates 23 are fitted together in such manner that they constitute a continuous s iral (see Fig. .1), thefplates of' one .turn of te spiral breakin l joint with the latesof the vnext turn. lie plates areheld) together by bolts 22, that.vv pass 4through theagle-brackets of adjoining' lates. The angle brackets are secured tot eplates by rivets`25.

My purpose in arrangin the lates of the innerY mold intoa genera v spira form .is to facilitate the removal and re lacement of the plates'v the extreme rear plate is brought forward and made the extreme front plate, and

operation,- ,while with plates arranged in rings the-plate thatfis the last in erecting a. ringy and the iirst in dismantlin a ring must have aspecial provision to ina e such dis-E mantlng, with the ring surrounded by concrete, possible. l

the lower end of each rib 30 of the outer mold is riveteda plate 28 by rivets 29. This plate has aflul terminating in a 'pin 32, which 4enters a ole in the plate 2`6and sill 13,- this hoebeing shown 'at 33. l*The rib 30 is provided' with ang'es '3ft integral therewith. Links 35 'of metal (made preferably from.

edges ofthe anges 34, andv each ink 35 is pivotally vheld imposition by V an eye-pin 36..

ground is shown at 11, and sunken, into it are sill-blocks .12 which support the' plates aspthe work process.l ,With spiral all plates are the Same in construction and- Plates 26ers sunken into the sills 1'3. To I Wire). are ada ted to ,engage the eripheral In thislrnanner the two. members constitute a.

ing the ribs at the topmost point in A lug-plate 37 is mounted upon the upper end of each rib 30, being secured thereto by aid of rivets 38. A bolt 39 and nut 40 hold together the two ribs 30 of a pair of ribs. The lagging 41, held in position by the ribs 30, constitutes the outer mold.

Spacing rods 45 (see upper portion of Fig. 1) are provided at each end with a fork 46, which is slipped over the bolts 39, thus holdlproper position. Similar spacing rods may e employed at other points of the ribs if they are re uir'ed, for pi es of larger diameter.l

ome of the p ates 23' may be rovided with bearings 47, so disposed that W en the plates 'are connected with others these bearings will bein the osition indicated at the bottom of Fig. 2. ounted upon these bearings are a es 48 carrying grooved pulleys `50, which support rails 49. These rails are connected together by stay-rods 49aand constitute a track. This track may be moved along endnot limit myself to the wise and secured in any desired position. A'car 51 travels with -grooved wheels on the rails 49. This car is -to carry the plates 23, etc., of the inner mold, when dismantled, to theforward end for erection at that point. The car 'is pulled forward or backward by 'le the inrier and outer molds are in this instance shown, for convenience, as sub` stantially cylindrical in cross section, I do particular forms shown. Neither do I limit myself to the precise shape of any part nor to any iven materials used in the construction o the l parts.

. I alsoreserve the right to sti'en the plates .of the inner mold by angle irons or similar means, or to use brace rods, above the area required for the car, for the stilening of the inner mold. For the support of inner mold I do' not limit myself tothe peculiar form of supports, Inade'in` pairs as shown, but may use any similar means for support-of inner mold, the supports resting'on sills and being pinned thereto, and the two arts of each pair of supports being removable sidewise.

aving thus described my invention, I

.a esasia claim as new and desire to secure by Letters Patent:

1. In a pipe mold, the combination of a plurality o plates disposed edge to edge so as'to form a spiral windin of tubular form, the plates of one turn of tflie spiral being so disposed as to break joint with the plates of the adjacent turn, and fastenings connecting said plates detachably together.

r V2. The combination of a plurality of plates connected together edge to edge and bent into spiral form, the edges of one turn of the .spiral abutting those of theadjacent turn, Aand angle? plates mounted upon said metallic plates, an angle late upon one metallic plate being detachab y connected with an angle plate of another metallic plate, for the purlpose of holding said metalic plates toget er temporarily.

3. The combination of a plurality of plates placed together edge to edge ina general spiral form and arran ed so as to form a continuous tubular mem er, and means for securing said plates detachably together.

4. The combination of an inner mold of tubular form, a car track `mounted therein and provided with rollers whereby it is slpported, said track being secured tentativ y 1n position and movable bodily in the general direction of its length, and a car mounted upon said track and movable relatively to the same.

5. The combination of an inner mold, a plurality of supports, each formed of two members connected directly together for the purpose of temporarily supporting said inner mold, an outer mold adjacent to said inner mold, supports for said outer mold, and sills common to said sup orts of said outer mold and said supports or said inner mo1d, for the purpose of securing concentricity of both of said molds. f

In testimony whereof I have signed my name to this specication' in the presence of two subscribing Witnesses.

FRANK TEICHMAN.

Witnesses:

WAL'roN HARRISON, EVERARD B. MARSHALL. 

